GB1504791A - Rotational speed transducer - Google Patents

Rotational speed transducer

Info

Publication number
GB1504791A
GB1504791A GB6198/75A GB619875A GB1504791A GB 1504791 A GB1504791 A GB 1504791A GB 6198/75 A GB6198/75 A GB 6198/75A GB 619875 A GB619875 A GB 619875A GB 1504791 A GB1504791 A GB 1504791A
Authority
GB
United Kingdom
Prior art keywords
rotor
stator
bearing
annular
carrying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6198/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
POLYMOTOR ITALIANA SpA
Original Assignee
POLYMOTOR ITALIANA SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by POLYMOTOR ITALIANA SpA filed Critical POLYMOTOR ITALIANA SpA
Priority to GB6198/75A priority Critical patent/GB1504791A/en
Publication of GB1504791A publication Critical patent/GB1504791A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1504791 Measuring rotary speed POLYMOTOR ITALIANA SpA 13 Feb 1975 6198/75 Heading G1N An embodiment of an inductive wheel speed transducer uses extensions of the bearing races 1, 2 of a rolling contact bearing as retaining rings 11, 12 on which the rotor and stator respectively of the transducer are mounted. The rotor consists in an annular ferromagnetic body 5 carrying an annular multi-pole permanent magnet 6. The stator body 7 has an annular groove housing a winding 9 and supporting a toothed ferromagnetic disc 10. The function of the rotor and stator may be transposed. In an alternative embodiment Fig. 3 (not shown) there is provided an outer ring (12) with an extension (112) over the outer race of the bearing and which has a flange (212) carrying the stator body. The inner race (1) and the inner retaining ring of the rotor are clamped together by a bush (14). In a further embodiment Fig. 4 (not shown) the retaining rings (11, 12) for the rotor and stator are adhesively bonded to the inner and outer races respectively of the bearing.
GB6198/75A 1975-02-13 1975-02-13 Rotational speed transducer Expired GB1504791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6198/75A GB1504791A (en) 1975-02-13 1975-02-13 Rotational speed transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6198/75A GB1504791A (en) 1975-02-13 1975-02-13 Rotational speed transducer

Publications (1)

Publication Number Publication Date
GB1504791A true GB1504791A (en) 1978-03-22

Family

ID=9810206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6198/75A Expired GB1504791A (en) 1975-02-13 1975-02-13 Rotational speed transducer

Country Status (1)

Country Link
GB (1) GB1504791A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464405A1 (en) * 1990-07-04 1992-01-08 Skf Industrie S.P.A. Device for determining the relative rotational speed between the races of a rolling contact bearing
EP0464403A1 (en) * 1990-07-04 1992-01-08 Skf Industrie S.P.A. Device for determining the relative rotational speed between two members, such as the support members of a vehicle wheel
US5200697A (en) * 1991-11-27 1993-04-06 Ntn Corporation Hub and bearing assembly with integrated rotation sensor including a tone ring and annular transducer
US5622436A (en) * 1994-08-11 1997-04-22 Nsk Ltd. Rolling bearing unit fitted with a rotational speed detection unit
US5850141A (en) * 1997-06-13 1998-12-15 Ntn Corporation Annular speed sensor with a tone ring having both axial and radial magnetic fields
EP0942186A2 (en) * 1996-10-11 1999-09-15 Nsk Ltd Rolling bearing unit with rotating speed sensor
US6003375A (en) * 1994-07-18 1999-12-21 Nsk Ltd. Hub unit with rotation speed sensor
EP1251354A1 (en) * 2001-04-18 2002-10-23 Aktiebolaget SKF Seal assembly for a roller bearing with an integrated angular speed sensor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464405A1 (en) * 1990-07-04 1992-01-08 Skf Industrie S.P.A. Device for determining the relative rotational speed between the races of a rolling contact bearing
EP0464403A1 (en) * 1990-07-04 1992-01-08 Skf Industrie S.P.A. Device for determining the relative rotational speed between two members, such as the support members of a vehicle wheel
US5200697A (en) * 1991-11-27 1993-04-06 Ntn Corporation Hub and bearing assembly with integrated rotation sensor including a tone ring and annular transducer
US6003375A (en) * 1994-07-18 1999-12-21 Nsk Ltd. Hub unit with rotation speed sensor
US5622436A (en) * 1994-08-11 1997-04-22 Nsk Ltd. Rolling bearing unit fitted with a rotational speed detection unit
US5779368A (en) * 1994-08-11 1998-07-14 Nsk Ltd. Rolling bearing unit fitted with a rotational speed detection unit
EP0942186A2 (en) * 1996-10-11 1999-09-15 Nsk Ltd Rolling bearing unit with rotating speed sensor
EP0942186B1 (en) * 1996-10-11 2009-12-23 NSK Limited Rolling bearing unit with rotating speed sensor
US5850141A (en) * 1997-06-13 1998-12-15 Ntn Corporation Annular speed sensor with a tone ring having both axial and radial magnetic fields
EP1251354A1 (en) * 2001-04-18 2002-10-23 Aktiebolaget SKF Seal assembly for a roller bearing with an integrated angular speed sensor
FR2823812A1 (en) * 2001-04-18 2002-10-25 Skf Ab SEALING DEVICE FOR INSTRUMENTALLY ROLLING BEARING AND INSTRUMENTARY ROLLING BEARING

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee